A box-fill calculation has six 12 AWG conductor equivalents. The supplied allowance is 2.25 cubic inches per equivalent. What minimum volume is required?

Texas Journeyman exam practice question · Wiring Methods & Materials

A box-fill calculation has six 12 AWG conductor equivalents. The supplied allowance is 2.25 cubic inches per equivalent. What minimum volume is required?

A27 cubic inches
B8.25 cubic inches
13.5 cubic inches
D2.67 cubic inches

Why C is correct

The problem supplies both the counted conductor equivalents and the per-equivalent volume. Multiplying 6 by 2.25 cubic inches gives 13.5 cubic inches; no unlisted clamp or yoke should be invented.

Practice 4 more Wiring Methods & Materials questions

Timed mock exams, a wrong book and flashcards — one subscription covers every contractor exam line.

Start studying free

A raceway has 1.00 square inch of internal area and the supplied allowable fill is 40 percent. What conductor area may be installed?
A box provides 20.0 cubic inches for 10 AWG conductors, using a supplied 2.50-cubic-inch allowance per equivalent. How many conductor equivalents fit?
Conductors occupy 0.60 square inch at a supplied 40-percent fill limit. What minimum internal raceway area is required?

A box-fill calculation has six 12 AWG conductor equivalents. The supplied allowance is 2.25 cubic inches per equivalent. What minimum volume is required?

A box-fill calculation has six 12 AWG conductor equivalents. The supplied allowance is 2.25 cubic inches per equivalent. What minimum volume is required?

More Wiring Methods & Materials questions